dat581:
Perhaps I can help. The F-35's brakes are designed against a fairly tough set of requirements for repeated conventional touchdowns at high weights at very high ambient temperatures. That drove in some fairly massive brake units and wheels, which were revisited during the weight reduction studies, but still left as very substantial units. F-35B has always had slightly smaller brakes to save weight.
During the first SRVL studies in 2003, I remember that braking performance was looked at. The wheel and brake units were never an issue, as peter we quite correctly points out. The bigger issue was wet decks, which were being carefully analysed a while back. The modern computer controlled brake units offer very good performance, once the software is tuned, but there will be extensive trials before the aircraft gets anywhere near a deck.
Best Regards as ever
Engines